Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
SPR
1001
CALL
DELISTED
Spirit AeroSystems
SPR
| $4.08M | 0.01% |
2,159
+1,113
| +106% | +$23.5K |
|
1002
Vale
VALE
$63.1B
| $4.08M | 0.01% |
+385,773
| New | +$4.33M |
|
|
SAVE
1003
PUT
DELISTED
Spirit Airlines, Inc.
SAVE
| $4.07M | 0.01% |
2,528
+460
| +22% | +$7.92K |
|
|
CHL
1004
PUT
DELISTED
China Mobile Limited
CHL
| $4.07M | 0.01% |
1,265
-50
| -4% | -$1.75K |
|
1005
PUT
PVH
PVH
$3.59B
| $4.07M | 0.01% |
682
+126
| +23% | +$6.93K |
|
1006
iShares MSCI Australia ETF
EWA
$1.33B
| $4.06M | 0.01% |
205,830
+138,697
| +207% | +$2.81M |
|
1007
Align Technology
ALGN
$12B
| $4.04M | 0.01% |
+12,342
| New | +$3.77M |
|
1008
PUT
Rockwell Automation
ROK
$51.3B
| $4.04M | 0.01% |
183
+70
| +62% | +$15.6K |
|
|
BBBY
1009
PUT
DELISTED
Bed Bath & Beyond Inc
BBBY
| $4.04M | 0.01% |
2,695
-711
| -21% | -$8.22K |
|
1010
CALL
Halliburton
HAL
$27.3B
| $4.04M | 0.01% |
3,350
+89
| +3% | +$1.29K |
|
|
JKS
1011
CALL
JinkoSolar
JKS
$825M
| $4.04M | 0.01% |
1,015
-36
| -3% | -$825 |
|
1012
PUT
M&T Bank
MTB
$35.6B
| $4.03M | 0.01% |
438
+178
| +68% | +$18.2K |
|
|
ATVI
1013
DELISTED
Activision Blizzard
ATVI
| $4.03M | 0.01% |
49,799
+41,901
| +531% | +$3.4M |
|
1014
PUT
Nasdaq
NDAQ
$51.1B
| $4.02M | 0.01% |
984
+660
| +204% | +$28.1K |
|
1015
CALL
Allstate
ALL
$65.5B
| $4.01M | 0.01% |
426
-23
| -5% | -$2.15K |
|
1016
CALL
Synchrony
SYF
$23.3B
| $4M | 0.01% |
1,527
-1,493
| -49% | -$36.3K |
|
|
SNP
1017
PUT
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
| $3.99M | 0.01% |
987
+339
| +52% | +$14.9K |
|
1018
CALL
Weibo
WB
$1.92B
| $3.99M | 0.01% |
1,095
+184
| +20% | +$6.5K |
|
1019
CALL
Alaska Air
ALK
$4.99B
| $3.98M | 0.01% |
1,087
+209
| +24% | +$7.83K |
|
1020
CALL
Vroom Inc
VRM
$38.1M
| $3.98M | 0.01% |
+10
| New | +$44.6K |
|
1021
CALL
LGI Homes
LGIH
$1.36B
| $3.97M | 0.01% |
342
+133
| +64% | +$14.7K |
|
1022
CALL
Idexx Laboratories
IDXX
$42.5B
| $3.97M | 0.01% |
101
+49
| +94% | +$18.1K |
|
1023
CALL
PTC
PTC
$13.1B
| $3.97M | 0.01% |
480
+385
| +405% | +$32.8K |
|
1024
PUT
Brookfield
BN
$101B
| $3.97M | 0.01% |
2,141
-271
| -11% | -$4.84K |
|
1025
TJX Companies
TJX
$170B
| $3.96M | 0.01% |
71,252
+71,172
| +88,965% | +$3.84M |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.